Question 162055
Solve for s:
{{{log((9s-7))=r-2}}}
====================
First, take the anti-log of both sides of the equation. That means making each side of the equation the exponent of 10:
{{{10^(log((9s-7)))=10^(r-2)}}}

Use a log property to rewrite the left side of the equation:
{{{9s-7=10^(r-2)}}}

Solve for s:
{{{9s=10^(r-2)+7}}}
{{{highlight(s=(10^(r-2)+7)/9)}}}
=====================
Good Luck,
tutor_paul@yahoo.com